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electronics equipements use in mining

electronics equipements use in mining

the purpose of which is to limit the explosion to inside the container so it does not propagate into the surrounding environment. Acceptance of flameproof as an equivalent to MSHA XP criteria would require making an equivalent level of protection determination. Unlike the case with the comparison of IS standards, the principle differences which bear on the fundamental protection mechanism are significantly more conservative in the MSHA standard as identified in report the Department of Labor, Mine Safety and Health Administration, Report of Investigation, Part 6 Equivalency Review and Comparison: MSHA and IEC Explosion proof Enclosure StandardsExternal (M...

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The fundamental question to be answered, in the context of current U.S. mining law, is how can new explosion protection techniques be introduced without reducing the level of protection afforded the miner? Such a comparison has proven very difficult to make without consideration of all factors contributing to the risk of an explosion, which include not only the equipment protection technique, but the reliability and effectiveness of the mine ventilation, monitoring of the atmosphere, and maintenance of the equipment, among other things. It is clear that the two techniques explicitly recognized by U.S. mining law provide some of the highest level of explosion protection available on an equipment basis, but does limiting explosion protection approvals to these two techniques preclude the introduction of new technologies that could improve safety and health in other areas? For instance, could more practical and affordable atmospheric monitors with integrated systems shutoff be develope...

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